[OE-core] [PATCH 19/25] unzip: fix four CVE defects
Armin Kuster
akuster808 at gmail.com
Sat Jul 18 15:16:26 UTC 2015
From: Roy Li <rongqing.li at windriver.com>
Port four patches from unzip_6.0-8+deb7u2.debian.tar.gz to fix:
cve-2014-8139
cve-2014-8140
cve-2014-8141
cve-2014-9636
Signed-off-by: Roy Li <rongqing.li at windriver.com>
Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
.../unzip/09-cve-2014-8139-crc-overflow.patch | 52 ++++++++
.../unzip/10-cve-2014-8140-test-compr-eb.patch | 33 +++++
.../unzip/11-cve-2014-8141-getzip64data.patch | 144 +++++++++++++++++++++
.../unzip/12-cve-2014-9636-test-compr-eb.patch | 45 +++++++
meta/recipes-extended/unzip/unzip_6.0.bb | 4 +
5 files changed, 278 insertions(+)
create mode 100644 meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch
create mode 100644 meta/recipes-extended/unzip/unzip/10-cve-2014-8140-test-compr-eb.patch
create mode 100644 meta/recipes-extended/unzip/unzip/11-cve-2014-8141-getzip64data.patch
create mode 100644 meta/recipes-extended/unzip/unzip/12-cve-2014-9636-test-compr-eb.patch
diff --git a/meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch b/meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch
new file mode 100644
index 0000000..e137f0d
--- /dev/null
+++ b/meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch
@@ -0,0 +1,52 @@
+From: sms
+Subject: Fix CVE-2014-8139: CRC32 verification heap-based overflow
+Bug-Debian: http://bugs.debian.org/773722
+
+The patch comes from unzip_6.0-8+deb7u2.debian.tar.gz
+
+Upstream-Status: Backport
+
+Signed-off-by: Roy Li <rongqing.li at windriver.com>
+
+--- a/extract.c
++++ b/extract.c
+@@ -298,6 +298,8 @@
+ #ifndef SFX
+ static ZCONST char Far InconsistEFlength[] = "bad extra-field entry:\n \
+ EF block length (%u bytes) exceeds remaining EF data (%u bytes)\n";
++ static ZCONST char Far TooSmallEBlength[] = "bad extra-field entry:\n \
++ EF block length (%u bytes) invalid (< %d)\n";
+ static ZCONST char Far InvalidComprDataEAs[] =
+ " invalid compressed data for EAs\n";
+ # if (defined(WIN32) && defined(NTSD_EAS))
+@@ -2023,7 +2025,8 @@
+ ebID = makeword(ef);
+ ebLen = (unsigned)makeword(ef+EB_LEN);
+
+- if (ebLen > (ef_len - EB_HEADSIZE)) {
++ if (ebLen > (ef_len - EB_HEADSIZE))
++ {
+ /* Discovered some extra field inconsistency! */
+ if (uO.qflag)
+ Info(slide, 1, ((char *)slide, "%-22s ",
+@@ -2158,11 +2161,19 @@
+ }
+ break;
+ case EF_PKVMS:
+- if (makelong(ef+EB_HEADSIZE) !=
++ if (ebLen < 4)
++ {
++ Info(slide, 1,
++ ((char *)slide, LoadFarString(TooSmallEBlength),
++ ebLen, 4));
++ }
++ else if (makelong(ef+EB_HEADSIZE) !=
+ crc32(CRCVAL_INITIAL, ef+(EB_HEADSIZE+4),
+ (extent)(ebLen-4)))
++ {
+ Info(slide, 1, ((char *)slide,
+ LoadFarString(BadCRC_EAs)));
++ }
+ break;
+ case EF_PKW32:
+ case EF_PKUNIX:
diff --git a/meta/recipes-extended/unzip/unzip/10-cve-2014-8140-test-compr-eb.patch b/meta/recipes-extended/unzip/unzip/10-cve-2014-8140-test-compr-eb.patch
new file mode 100644
index 0000000..edc7d51
--- /dev/null
+++ b/meta/recipes-extended/unzip/unzip/10-cve-2014-8140-test-compr-eb.patch
@@ -0,0 +1,33 @@
+From: sms
+Subject: Fix CVE-2014-8140: out-of-bounds write issue in test_compr_eb()
+Bug-Debian: http://bugs.debian.org/773722
+
+The patch comes from unzip_6.0-8+deb7u2.debian.tar.gz
+
+Upstream-Status: Backport
+
+Signed-off-by: Roy Li <rongqing.li at windriver.com>
+
+--- a/extract.c
++++ b/extract.c
+@@ -2232,10 +2232,17 @@
+ if (compr_offset < 4) /* field is not compressed: */
+ return PK_OK; /* do nothing and signal OK */
+
++ /* Return no/bad-data error status if any problem is found:
++ * 1. eb_size is too small to hold the uncompressed size
++ * (eb_ucsize). (Else extract eb_ucsize.)
++ * 2. eb_ucsize is zero (invalid). 2014-12-04 SMS.
++ * 3. eb_ucsize is positive, but eb_size is too small to hold
++ * the compressed data header.
++ */
+ if ((eb_size < (EB_UCSIZE_P + 4)) ||
+- ((eb_ucsize = makelong(eb+(EB_HEADSIZE+EB_UCSIZE_P))) > 0L &&
+- eb_size <= (compr_offset + EB_CMPRHEADLEN)))
+- return IZ_EF_TRUNC; /* no compressed data! */
++ ((eb_ucsize = makelong( eb+ (EB_HEADSIZE+ EB_UCSIZE_P))) == 0L) ||
++ ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
++ return IZ_EF_TRUNC; /* no/bad compressed data! */
+
+ if (
+ #ifdef INT_16BIT
diff --git a/meta/recipes-extended/unzip/unzip/11-cve-2014-8141-getzip64data.patch b/meta/recipes-extended/unzip/unzip/11-cve-2014-8141-getzip64data.patch
new file mode 100644
index 0000000..d0c1db3
--- /dev/null
+++ b/meta/recipes-extended/unzip/unzip/11-cve-2014-8141-getzip64data.patch
@@ -0,0 +1,144 @@
+From: sms
+Subject: Fix CVE-2014-8141: out-of-bounds read issues in getZip64Data()
+Bug-Debian: http://bugs.debian.org/773722
+
+The patch comes from unzip_6.0-8+deb7u2.debian.tar.gz
+
+Upstream-Status: Backport
+
+Signed-off-by: Roy Li <rongqing.li at windriver.com>
+
+
+--- a/fileio.c
++++ b/fileio.c
+@@ -176,6 +176,8 @@
+ #endif
+ static ZCONST char Far ExtraFieldTooLong[] =
+ "warning: extra field too long (%d). Ignoring...\n";
++static ZCONST char Far ExtraFieldCorrupt[] =
++ "warning: extra field (type: 0x%04x) corrupt. Continuing...\n";
+
+ #ifdef WINDLL
+ static ZCONST char Far DiskFullQuery[] =
+@@ -2295,7 +2297,12 @@
+ if (readbuf(__G__ (char *)G.extra_field, length) == 0)
+ return PK_EOF;
+ /* Looks like here is where extra fields are read */
+- getZip64Data(__G__ G.extra_field, length);
++ if (getZip64Data(__G__ G.extra_field, length) != PK_COOL)
++ {
++ Info(slide, 0x401, ((char *)slide,
++ LoadFarString( ExtraFieldCorrupt), EF_PKSZ64));
++ error = PK_WARN;
++ }
+ #ifdef UNICODE_SUPPORT
+ G.unipath_filename = NULL;
+ if (G.UzO.U_flag < 2) {
+--- a/process.c
++++ b/process.c
+@@ -1,5 +1,5 @@
+ /*
+- Copyright (c) 1990-2009 Info-ZIP. All rights reserved.
++ Copyright (c) 1990-2014 Info-ZIP. All rights reserved.
+
+ See the accompanying file LICENSE, version 2009-Jan-02 or later
+ (the contents of which are also included in unzip.h) for terms of use.
+@@ -1901,48 +1901,82 @@
+ and a 4-byte version of disk start number.
+ Sets both local header and central header fields. Not terribly clever,
+ but it means that this procedure is only called in one place.
++
++ 2014-12-05 SMS.
++ Added checks to ensure that enough data are available before calling
++ makeint64() or makelong(). Replaced various sizeof() values with
++ simple ("4" or "8") constants. (The Zip64 structures do not depend
++ on our variable sizes.) Error handling is crude, but we should now
++ stay within the buffer.
+ ---------------------------------------------------------------------------*/
+
++#define Z64FLGS 0xffff
++#define Z64FLGL 0xffffffff
++
+ if (ef_len == 0 || ef_buf == NULL)
+ return PK_COOL;
+
+ Trace((stderr,"\ngetZip64Data: scanning extra field of length %u\n",
+ ef_len));
+
+- while (ef_len >= EB_HEADSIZE) {
++ while (ef_len >= EB_HEADSIZE)
++ {
+ eb_id = makeword(EB_ID + ef_buf);
+ eb_len = makeword(EB_LEN + ef_buf);
+
+- if (eb_len > (ef_len - EB_HEADSIZE)) {
+- /* discovered some extra field inconsistency! */
++ if (eb_len > (ef_len - EB_HEADSIZE))
++ {
++ /* Extra block length exceeds remaining extra field length. */
+ Trace((stderr,
+ "getZip64Data: block length %u > rest ef_size %u\n", eb_len,
+ ef_len - EB_HEADSIZE));
+ break;
+ }
+- if (eb_id == EF_PKSZ64) {
+-
++ if (eb_id == EF_PKSZ64)
++ {
+ int offset = EB_HEADSIZE;
+
+- if (G.crec.ucsize == 0xffffffff || G.lrec.ucsize == 0xffffffff){
+- G.lrec.ucsize = G.crec.ucsize = makeint64(offset + ef_buf);
+- offset += sizeof(G.crec.ucsize);
++ if ((G.crec.ucsize == Z64FLGL) || (G.lrec.ucsize == Z64FLGL))
++ {
++ if (offset+ 8 > ef_len)
++ return PK_ERR;
++
++ G.crec.ucsize = G.lrec.ucsize = makeint64(offset + ef_buf);
++ offset += 8;
+ }
+- if (G.crec.csize == 0xffffffff || G.lrec.csize == 0xffffffff){
+- G.csize = G.lrec.csize = G.crec.csize = makeint64(offset + ef_buf);
+- offset += sizeof(G.crec.csize);
++
++ if ((G.crec.csize == Z64FLGL) || (G.lrec.csize == Z64FLGL))
++ {
++ if (offset+ 8 > ef_len)
++ return PK_ERR;
++
++ G.csize = G.crec.csize = G.lrec.csize = makeint64(offset + ef_buf);
++ offset += 8;
+ }
+- if (G.crec.relative_offset_local_header == 0xffffffff){
++
++ if (G.crec.relative_offset_local_header == Z64FLGL)
++ {
++ if (offset+ 8 > ef_len)
++ return PK_ERR;
++
+ G.crec.relative_offset_local_header = makeint64(offset + ef_buf);
+- offset += sizeof(G.crec.relative_offset_local_header);
++ offset += 8;
+ }
+- if (G.crec.disk_number_start == 0xffff){
++
++ if (G.crec.disk_number_start == Z64FLGS)
++ {
++ if (offset+ 4 > ef_len)
++ return PK_ERR;
++
+ G.crec.disk_number_start = (zuvl_t)makelong(offset + ef_buf);
+- offset += sizeof(G.crec.disk_number_start);
++ offset += 4;
+ }
++#if 0
++ break; /* Expect only one EF_PKSZ64 block. */
++#endif /* 0 */
+ }
+
+- /* Skip this extra field block */
++ /* Skip this extra field block. */
+ ef_buf += (eb_len + EB_HEADSIZE);
+ ef_len -= (eb_len + EB_HEADSIZE);
+ }
diff --git a/meta/recipes-extended/unzip/unzip/12-cve-2014-9636-test-compr-eb.patch b/meta/recipes-extended/unzip/unzip/12-cve-2014-9636-test-compr-eb.patch
new file mode 100644
index 0000000..b64dd99
--- /dev/null
+++ b/meta/recipes-extended/unzip/unzip/12-cve-2014-9636-test-compr-eb.patch
@@ -0,0 +1,45 @@
+From: mancha <mancha1 AT zoho DOT com>
+Date: Mon, 3 Nov 2014
+Subject: Info-ZIP UnZip buffer overflow
+Bug-Debian: http://bugs.debian.org/776589
+
+By carefully crafting a corrupt ZIP archive with "extra fields" that
+purport to have compressed blocks larger than the corresponding
+uncompressed blocks in STORED no-compression mode, an attacker can
+trigger a heap overflow that can result in application crash or
+possibly have other unspecified impact.
+
+This patch ensures that when extra fields use STORED mode, the
+"compressed" and uncompressed block sizes match.
+
+The patch comes from unzip_6.0-8+deb7u2.debian.tar.gz
+
+Upstream-Status: Backport
+
+Signed-off-by: Roy Li <rongqing.li at windriver.com>
+
+--- a/extract.c
++++ b/extract.c
+@@ -2229,6 +2229,7 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
+ uch *eb_ucptr;
+ int r;
+ ush method;
++ ush eb_compr_method;
+
+ if (compr_offset < 4) /* field is not compressed: */
+ return PK_OK; /* do nothing and signal OK */
+@@ -2244,6 +2245,14 @@
+ ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
+ return IZ_EF_TRUNC; /* no/bad compressed data! */
+
++ /* 2014-11-03 Michal Zalewski, SMS.
++ * For STORE method, compressed and uncompressed sizes must agree.
++ * http://www.info-zip.org/phpBB3/viewtopic.php?f=7&t=450
++ */
++ eb_compr_method = makeword( eb + (EB_HEADSIZE + compr_offset));
++ if ((eb_compr_method == STORED) && (eb_size - compr_offset != eb_ucsize))
++ return PK_ERR;
++
+ if (
+ #ifdef INT_16BIT
+ (((ulg)(extent)eb_ucsize) != eb_ucsize) ||
diff --git a/meta/recipes-extended/unzip/unzip_6.0.bb b/meta/recipes-extended/unzip/unzip_6.0.bb
index 9653bee..00b68ad 100644
--- a/meta/recipes-extended/unzip/unzip_6.0.bb
+++ b/meta/recipes-extended/unzip/unzip_6.0.bb
@@ -11,6 +11,10 @@ SRC_URI = "ftp://ftp.info-zip.org/pub/infozip/src/unzip60.tgz \
file://define-ldflags.patch \
file://06-unzip60-alt-iconv-utf8_CVE-2015-1315.patch \
file://unzip-6.0_overflow3.diff \
+ file://09-cve-2014-8139-crc-overflow.patch \
+ file://10-cve-2014-8140-test-compr-eb.patch \
+ file://11-cve-2014-8141-getzip64data.patch \
+ file://12-cve-2014-9636-test-compr-eb.patch \
"
SRC_URI[md5sum] = "62b490407489521db863b523a7f86375"
--
1.9.1
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